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CSK: uma abordagem para estruturação de kernel de tempo real em componentes
(Universidade Federal de São Carlos, 2004-05-27) Correia, Lúcio José Herculano; Moron, Célio Estevan; https://lattes.cnpq.br/8635476812779360
Generally, operating systems offer a set of services through primitives that are used on demand by applications. Similarly, software components implement and provide services through well-defined interfaces, which are reused in different software projects of a problem domain. Based upon this similarity, it is researched the reuse of software components in real time operating systems projects. It is presented CSK (Computer Structured Kernel) approach for structuring a real time kernel with software components. The approach is divided in two phases. In the first one software components are built from the legacy code and documentation of a preexisting kernel. In the second one, that kernel is rebuilt by reusing the produced components. A case study applies CSK to real time kernel Virtuoso.
Integração dos requisitos temporais de um Kernel de tempo-real e de sua comunicação em redes
(Universidade Federal de São Carlos, 2004-05-27) Rossler, Daniel Augusto; Moron, Célio Estevan; https://lattes.cnpq.br/8635476812779360
The study performed on this paper is intended to extend the message exchange between process of a real time kernel, that nowadays is executed between processes on the same station, in order to cover also distinguish stations. In order to allow location transparency to the processes, a name server is used to manage the system processes. And to optimize the server access, the cache and pre-fetching techniques are utilized. Also, during the arrival of a new message to a system node, the Priority Ceiling Protocol will be used to define the priority of the process that will receive the message. As result of this work, it was developed a Real Time Operating System with all the features described above. The name of this Operating System is Sao Carlos.